<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
<script>
function hasproperty (obj, opt) {
    let value = opt.split('.').reduce((res, item)=> res[item], obj)
    return value ? value : -1
}

o = {
    x: {
        y: {
            z: 100
        }
    }
}
console.log(hasproperty(o, 'x.y.z'))
</script>
</body>
</html>